Sometimes (rarely), when using the Harvester of souls, the explosion ejects the player out of the world. It happened to me 3 times. In different situations. I think it has something to do with creepers being around, or creepers having died a bit before the explosion.

Whatever, I leave this video here. If there is a way I can help with debugging this issue, just tell me so I can do it next time I cross over it.

Here is a video. The explosion happens at around 00:20.

https://youtu.be/AXXjs5GCv3g?t=20